← Jefferson, PA

Tap water quality report

ZIP 15370 — Jefferson, PA

EPA monitoring across the 2 water suppliers serving ZIP 15370 in Jefferson, PA detected 20 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
44,400
people served
20
contaminants found

What was found in ZIP 15370

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
680 µg/L 6.8%
of the EPA limit 10000 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
Highest in the ZIP: 1200 µg/L — PA AMERICAN DILLINER SYSTEM · 4,200 people · 2019
2/2 SYR4
Fluoride
946 µg/L 24%
of the EPA limit 4000 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
1/2 SYR4
TTHM
101.5 µg/L 127%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Copper
54.39499999999998 µg/L 4.2%
of the EPA limit 1300 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
Highest in the ZIP: 85.575 µg/L — PA AMERICAN DILLINER SYSTEM · 4,200 people · 2019
2/2 SYR4
Chloroform
71 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Barium
40.9 µg/L 2%
of the EPA limit 2000 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
Highest in the ZIP: 55.79999999999999 µg/L — PA AMERICAN DILLINER SYSTEM · 4,200 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
45.039999999999985 µg/L 75%
of the EPA limit 60 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Monochloroacetic Acid
4.63 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
Highest in the ZIP: 35.199999999999996 µg/L — PA AMERICAN DILLINER SYSTEM · 4,200 people · 2019
2/2 SYR4
Dichloroacetic Acid
27.125 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Bromodichloromethane
27.099999999999966 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Trichloroacetic Acid
18.865 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Dibromochloromethane
11.739999999999998 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Cyanide
6 µg/L 3%
of the EPA limit 200 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
1/2 SYR4
Monobromoacetic Acid
5.32 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
1/2 SYR4
Lead
5.270000000000004 µg/L 35%
of the EPA limit 15 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
1/2 SYR4
Dibromoacetic Acid
3.5825 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Bromoform
2 µg/L
No EPA limit set
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
2/2 SYR4
Xylenes, Total
2 µg/L 0%
of the EPA limit 10000 µg/L
Highest in the ZIP: PA AMERICAN DILLINER SYSTEM · 4,200 people · 2019
1/2 SYR4
Antimony, Total
0.5000 µg/L 8.3%
of the EPA limit 6 µg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2019
Highest in the ZIP: 0.6000 µg/L — PA AMERICAN DILLINER SYSTEM · 4,200 people · 2019
2/2 SYR4
Lead
0.00092 mg/L 6.1%
of the EPA limit 0.0150 mg/L
Main supplier: SOUTHWESTERN PA WATER AUTH · 40,200 people · 2025
Highest in the ZIP: 0.0018 mg/L — PA AMERICAN DILLINER SYSTEM · 4,200 people · 2025
2/2 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 15370

SupplierStatePopulation served
SOUTHWESTERN PA WATER AUTH PA 40,200
PA AMERICAN DILLINER SYSTEM PA 4,200

Frequently asked questions about ZIP 15370 tap water

Is the tap water in ZIP 15370 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 15370. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 15370?

2 public water suppliers report EPA drinking-water monitoring for ZIP 15370. Each is listed above with its population served.

What contaminants are in ZIP 15370's water?

EPA monitoring detected Nitrate, Fluoride, TTHM, Copper, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.